Tube hinge



FIG. 1 is an elevated perspective view of a tube hinge of the present invention;

FIG. 2 is a lower perspective view of the tube hinge of the present invention;

FIG. 3 is a left side view of the tube hinge of the present invention (the right side view is a mirror image of the left side view);

FIG. 4 is a top view of the tube hinge of the present invention;

FIG. 5 is a bottom view of the tube hinge of the present invention;

FIG. 6 is a front view of the tube hinge of the present invention (the rear view is a mirror image of the front view); and,

FIG. 7 is an elevated perspective view from a reverse angle of the tube hinge of the present invention with one side of the tube hinge pivoted ninety degrees. 

CLAIM The ornamental design for a tube hinge, as shown. 